Pakistan's Punjab government on Friday declared smog a “health crisis" and used artificial rain in several cities across the province in an effort to combat its hazardous levels, as millions reported breathing problems and other respiratory issues over the past month.

Punjab province in Pakistan has declared a health emergency and closed two cities due to severe smog affecting nearly 2 million people.

LAHORE, Pakistan A Pakistani province declared a health emergency Friday due to smog and imposed a shutdown in two major cities.Smog has choked Punja..